compat_execinfo.h

// Copyright (c) 2006-2009 The Chromium Authors. All rights reserved.// Use of this source code is governed by a BSD-style license that can be// found in the LICENSE file.// A file you can include instead of <execinfo.h> if your project might need// to run on Mac OS X 10.4.#ifndef BASE_COMPAT_EXECINFO_H_#define BASE_COMPAT_EXECINFO_H_#include "build/build_config.h"#if defined(OS_MACOSX)#include <AvailabilityMacros.h>#endif#if defined(OS_MACOSX) && MAC_OS_X_VERSION_MIN_REQUIRED < MAC_OS_X_VERSION_10_5// Manually define these here as weak imports, rather than including execinfo.h.// This lets us launch on 10.4 which does not have these calls.extern"C" {
externint backtrace(void**, int) __attribute__((weak_import));
extern char** backtrace_symbols(void* const*, int)
__attribute__((weak_import));
extern void backtrace_symbols_fd(void* const*, int, int)
__attribute__((weak_import));
} // extern "C"#else#include <execinfo.h>#endif#endif // BASE_COMPAT_EXECINFO_H_